Merge Gateway vs OpenRouter

OpenRouter connects models and providers. Merge Gateway extends that to give enterprise products control over how AI is routed, secured, and delivered.

$10 free credits, every month with Pro plan.

Trusted by teams building the next generation of AI products
Model access is the start.
‍Product controls are the difference.

Define what “best” means for your use case

Merge

Gateway scores eligible models against the criteria your product requires
  • Use published benchmarks
  • Add your own eval scores
  • Weight criteria by use case
  • Train complexity routing on your prompts

OpenRouter

OpenRouter selects models by task, community spend, and cost-quality. For tool calls, its benchmarks rank providers. Your scorecard cannot drive selection.
  • No customer-supplied benchmark scorecard
  • No routing from customer eval scores
  • No weighted mix of customer quality criteria

Configure routing around your product

Merge

Gateway learns what complexity means for your product before it selects a model
  • Train on your own prompts
  • Score each prompt before model selection
  • Retrain as your product changes

OpenRouter

Custom classifiers tag completed requests for reporting
  • No customer-trained routing classifier
  • Custom classification runs after the response
  • Custom tags inform reporting, not routing

Give every customer their own model controls

Merge

Gateway lets you provision every one of your customers with first-class controls
  • Native Customer object
  • Routing policies per customer
  • BYOK per customer
  • Budgets and usage per customer
  • Manage everything through APIs

OpenRouter

OpenRouter scopes controls to workspaces, members, and API keys
  • No dedicated SaaS Customer object
  • Your app maps customers to workspaces, members, or API keys
  • User-level reporting requires app-supplied IDs

Make security policies customer-centric

Merge

Merge combines prompt protection with customer-specific and organization-wide controls
  • SOC 2 Type II and ISO 27001
  • HIPAA and GDPR coverage
  • DLP on prompts
  • Model and provider rules per customer
  • Org-wide region controls and audit trail

OpenRouter

OpenRouter offers input scanning, ZDR, EU region locking, SOC 2, and GDPR
  • No public ISO 27001 claim
  • No public HIPAA claim
  • Your app maps customer policies to platform scopes

Why choose Merge over OpenRouter

OpenRouter offers workspaces, guardrails, and provider routing. Merge includes native customer governance, evaluation-driven routing, and customer-scoped security.
Capability
OpenRouter
Custom routing policies
Tag requests by customer tier, region, or use case, then route on AND/OR rules
Sorts by price, latency, or throughput. No rules by customer tier, use case, or custom criteria.
Benchmark routing
Gateway evals every model against benchmarks you define, then routes to the winner
No custom benchmark routing. Model selection limited to built-in sort criteria.
Request visibility
Every request logged: model, routing decision, latency, and cost
Usage tracked by model and API key. Routing decisions not included by default.
Embedded routing control
Provision routing policies, BYOK, and spend limits for every customer
No documented end-customer object. Your app maps customers to OpenRouter scopes.
Compliance
Merge is SOC 2 Type II, ISO 27001, GDPR, and HIPAA compliant
No public ISO 27001 or HIPAA claim
Dedicated deployment
VPC and on-prem on Enterprise plan
No dedicated deployment option

Read why Windmill switched from OpenRouter to Merge

Read case study

"Merge Gateway offers better LLM routing, cost control, and observability functionality than OpenRouter. We only gained net-new capabilities by switching."

Ben Danzig
Software Engineer, Windmill

Route on your standards. Govern every customer. Inspect every request.

See how teams ship production AI with full cost visibility, governance, and control